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The way authentication is handled by CSLA .NET is controlled through web.config: < xml version="1.0" encoding="utf-8" > <configuration> <appSettings> <add key="CslaAuthentication" value="Csla" /> </appSettings> </configuration> The CslaAuthentication key shown here specifies the use of custom authentication. 8 implemented the PTPrincipal and PTIdentity classes specifically to support custom authentication, and the UI code in this chapter will use custom authentication as well. If you want to use Windows authentication, change the configuration to this: <add key="CslaAuthentication" value="Windows" /> Of course, that change would require coding changes. To start, the PTPrincipal and PTIdentity classes should be removed from ProjectTracker.Library, as they would no longer be needed. Also, the virtual root would need to disallow anonymous users, and ASP.NET would need to be configured to impersonate the caller. Beyond that, the CslaCredentials custom SOAP header and related code discussed in this chapter would not be used.

You ve already seen how a business rule is defined based on the RuleHandler delegate. A key part of what ValidationRules does is keep a list of such rule methods for each of the business object s properties. To do this, it relies on two other classes: ValidationRulesManager and SharedValidationRulesManager. The ValidationRulesManager class keeps a list of rules for each property. One way ValidationRulesManager is used is to keep a list of rules that is unique for each instance of a business object. This means that each time a business object is created, a set of rules can be associated with the properties of that particular instance. This has a pretty big impact on performance and memory consumption, and it s usually not the right approach. However, sometimes objects really do need unique rules, and this class enables that scenario. Another way ValidationRulesManager is used is by the SharedValidationRulesManager class, because it keeps a list of rules for each business type. The SharedValidationRulesManager class keeps a list of rules for each property that is common across all instances of a business object type. This means that the first time an instance of a given business class is created, the rules are associated with the properties of that type. The resulting associations are cached for the lifetime of the application and are shared by all instances of that business class. This has good performance and minimal memory consumption, and it s the recommended approach.

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public override string ToString() { return base.ToString() + "!" + _maxLength.ToString(); } } All subclasses of RuleArgs will follow this basic structure. First, the extra data to be provided is stored in a field and exposed through a property: private int _maxLength; public int MaxLength { get { return _maxLength; } } The data provided here will obviously vary based on the needs of the rule method. The constructor must accept the name of the property to be validated, and of course, the extra data. The property name is provided to the RuleArgs base class, and the extra data is stored in the field declared in the preceding code: public MaxLengthRuleArgs( string propertyName, int maxLength) : base(propertyName) { _maxLength = maxLength; } Finally, the ToString() method is overridden. This is required! Recall that in 3 this value is used to uniquely identify the corresponding rule within the list of broken rules for an object. The ToString() value of the RuleArgs object is combined with the name of the rule method to generate the unique rule name. This means that the ToString() implementation must return a string representation of the rule that is unique within a given business object. Typically, this can be done by combining the name of the rule (from the RuleArgs base class) with whatever extra data you are storing in your custom object: public override string ToString() { return base.ToString() + "!" + _maxLength.ToString(); } The RuleArgs base class implements a ToString() method that returns a relatively unique value (the name of the property). By combining this with the extra data stored in this custom class, the resulting name should be unique within the business object.

ServiceMode WebEndpoint WebFault WebServiceClient WebServiceProvider WebServiceRef These annotations are part of the core Java API for XML Web Services (JAX-WS) APIs. These were also explored in 6.

Note This code passes a 3 3 matrix using a single intrinsic, TEXCOORD1. This will compile, but in the

You should always call the Shutdown method before Close to ensure that data is finished sending/receiving on the open socket. Table 5-10. Properties of the System.Net.Socket Class

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